Date: Wed, 9 May 2007 18:53:55 GMT From: Fredrik Lindberg <fli@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 119587 for review Message-ID: <200705091853.l49IrtnO038107@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=119587 Change 119587 by fli@fli_genesis on 2007/05/09 18:52:54 Add a function to expand the size of an existing buffer segment Affected files ... .. //depot/projects/soc2007/fli-mdns_sd/mdnsd/stack_buf.c#3 edit Differences ... ==== //depot/projects/soc2007/fli-mdns_sd/mdnsd/stack_buf.c#3 (text+ko) ==== @@ -190,6 +190,26 @@ MDNS_BP_UNLOCK(bp); } +int +mdns_buf_expand(struct mdns_buf *buf, size_t len) +{ + char *p; + + if (len == 0) + len = buf->b_sz * 2; + else if (len < buf->b_len) + return (-1); + + p = realloc(buf->b_buf, len); + if (p == NULL) + return (-1); + + buf->b_sz = len; + buf->b_buf = p; + buf->b_flags |= MDNS_BUF_TEMP; + return (0); +} + /* * Merge a chain of buffer segments into one continuous buffer */
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